PetJournalEx

PetJournalEx is an addon that contains various improvements for the Pet Journal UI.

Currently features these improvements:
- Displays unique number of pets collected next to pet count.
- Displays (collected) on the tooltip when mousing over a wild battle pet if you have this pet species in your collection already.
- Quick Pet Journal lookup in the unit popup menu. (NEW)

1.1.1 (2012-07-29):
- Fix error that happened when UnitPopup does not a have a unit (guild roster etc).

I'm looking for an addon that: "Displays (collected) on the tooltip when mousing over a wild battle pet if you have this pet species in your collection already." So this looks good, any chance you could add more information about the already collected pet? Something like:
-------------------------
Rabbit
Pet Level 1 Critter
Capturable
---
Collected (2/3)
Rabbit Level 2 uncommon
Fred Level 23 rare
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Edit: Also modifying the unit frame tooltip within a battle with the same info.